2018 Australian Open - Day 10 [Getty Images]

MELBOURNE, AUSTRALIA - JANUARY 24: Tomas Berdych of the Czech Republic looks on in his quarter-final match against Roger Federer of Switzerland on day 10 of the 2018 Australian Open at Melbourne Park on January 24, 2018 in Melbourne, Australia. (Photo by Mark Kolbe/Getty Images)

Getty Images Sport Mark Kolbe